Sleeve joint type beam support

The utility model discloses a cup joint type beam support which comprises a first cup joint beam, connecting holes are formed in the two sides of the first cup joint beam, an inserting column is inserted into one side of the inner wall of each connecting hole, a fixing column is fixedly connected to one end of each inserting column, a sliding groove is formed in the top of one side of each fixing column, and a sliding block is arranged in the sliding groove. And one side of the inner wall of the sliding groove is fixedly connected with a limiting sliding rod. Through the arrangement of the first sleeving beam, the inserting column, the fixing column, the mounting column, a mounting hole, a hand push plate, a pressing rod and a limiting rod, a connecting block at the top is pushed to move upwards, so that the connecting block drives a top mounting inclined plate to insert the mounting column above into the mounting hole in the bottom of the sleeving beam, then the pressing rod is loosened, and the mounting col